This is Ḥunayn ibn Isḥāq's Translation of Galen's commentary on the Hippocratic Aphorisms. The first several folios are missing, so it begins in the middle of comm. on lemma i. 15. The beginning of each Book is as follows: Bk2: 13a; Bk3: 44b; Bk4: 72b; Bk5: 111a; Bk6: 144a; Bk7: 161a.